Sheaf gatherer for mowing and binding machines



July .7, 1936. M. RAUSCH 2,045,426

SHEAF GATHERER FOR MOWING AND BINDING MACHINES Filed April 27, 1934 2 Sheets-Sheet 1 July 7, 1936. M. RAuscH 2,045,426

SHEAF GATHERER FOR MOWING AND BINDING MACHINES Filed April 27, 1934 2 Sheets-Sheet 2 g 7 tion are higher on the inner side thereof than on the other longitudinal side so that they penetrate i 7 chine axially-parallel to the longitudinal direction tudinal side of the conveyor grid tendto move ahead of those. on the inner longitudinal side,.

. uatedon the outer longitudinal side'of the sheaf;

of thesheaf-gatherer but often at anangle to this direction and to one another, so thatthey often donot lie side by side but partly overlap and then :do not bear on the conveyor grid along their entire length but only at certain points thereof;

The result is, that during the depositing of the stacksrof sheaves the speed of the conveyor grid is only. incompletely. transmitted to they sheaves lying on'the inner longitudinal sideof the conveyor grid. The conditions are, however, differr ent'in'the case of the sheaves on the outer) lo n gitudinal side of the conveyor grid remote from the mowing and binding machine; The sheaves can only come: on to this longitudinal side' owing to the fact that they roll overthe sheaves already their entire length on this grid, and that, consequentl the speed of theconveyor grid is com- 7 pletely transmitted to these sheaves. Therefore, V

{ :Figure GWith the individual parts in difierent'po- 2.

during the depositing of the stack of sheaves on the field the sheaves situated on'the outer longithus, however, allowing no rubbing between the individual sheaves.

about a perpendicular axis in such a manner'that the sheaves are deposited on the field at'a n angle to the travelling direction of the sheaf gatherer with the ears towards the mowing and binding machine; If then, during-the next operation, the" mowing and binding machine and the sheaf gath erer are moved a distance of one working width;

the ears'lie in the track of the running wheel sitgatherer, this wheel, when running thereover, sep

arating the grain fromgthe earsin considerably grid is inclined in transverse direction from the inner to. the outerv longitudinalside of the sheaf.

gatherer so that the first sheaves deposited bythe mowing and binding machine on to the conveyor grid slide from the innerto the outer side thereof.

7 For the'better' transmission of the conveying speed on to the sheaves on the inner longitudinal side of the conveyorigrid the oatches of the conveyor gridin the sheaf-carrieraccording to the invenmore deeply into the bundle of stalks'of the sheaves andvthus grip them better.

i Finally, the danger of separation of grains from ,the'ears is due to the following circumstance. If, owing to carelessness on the part of the operator, the sheaf gatherer is loaded too high, the depos thereon. Consequently; alongitudinal shifting of the upper sheaves relative to the sheaves situated thereunder takes place with the result thattthe fears of the upper sheaves rub'against'the lower sheaves, so that grains may be separated from the ears. Consequently, the conveying surface of g the conveyor grid in the sheaf-gatherer accord- Owing to the irregular speed transmission to the sheaves thewhole stack'of. sheaves turns during the depositing moreor less 1 sprocket wheel II (Figs. 5-7) is looselymounted on an axle I0 (Fig. 3) oftheirunning wheel I p the sprocket wheel II with the running wheel I.

[thus transmitting the" rotarymovement of: the running wheeltdthe sprocket wheeli I-I. A de ing to the inventionis also'inclined in the 101181 tudinal direction of, the sheaf gatherer from the front towardsjthe rear in order to reduce the braking effect. a 1 i Finally,;adevice is provided on the sheaf gath- 5 erer according to the invention intended to prevent the stalk parts, leaves and the like from en-' tering the grain catcher. 'I'hisarrangement'will be hereinafter explained; 4 An embodiment of the invention is illustrated-10 by way of example in the accompanying drawings 1 in 'which: V V V I a Fig. 1 is a longitudinal section through-the sheaf gatherer, taken on line 1-1 of Fig.2.

Fig. 2 shows the sheaf gatherer in top plan view. 15 V Fig. 3 is a cross-section on line'3'3 of Fig; 2. V Fig. 4 is a cross-section on line 4-4 of Fig. 1.

* Fig. 5 is a diagrammatic view showing the conveyor griddrive in elevation viewed tion of the arrow (1 Fig. 3.

in the direc-" line 6 B of Figs. 2 and 7. j V Fig. 7 is a top plan view of Fig. 6.

Figs. 8 and}! are similar longitudinal sections to the usual way to a mowing and binding machine 3 1 which deposits the sheaves onthe conveyor grid "of the sheaf gatherer. From time to time the v operator of the mowing and binding machine sets j in motion the conveyor grid from his seat, so that the sheaves which have in the meantimecollected' 3 V thereon are deposited on the" field. Afterdepositing the sheaves, the conveyor grid automatically comes toa standstill;

The sheaf gatherer comprises a. bOxi l Jwhich is supported by the two running wheels I, 2 and 40 by a front supporting wheel 3. A transverse: shaftS and a transverse axle 5' parallel thereto:

are mounted in the longitudinal walls ofthe box.- On the ends of the shafti sprocket wheels '6, I

are keyed and on theends of the transverse axle .75 sprocket wheels 6', 'I' areloosely mounted.

The conveyor grid is formed by transverse bars 9 which are fixed on chains], 8' on the sprooket'wheels 6, .6. and I, I respectively; A

and rotated by-being coupled with the/running wheel it p ing then a rotary movement l to a sprocket wheel I3 on the shaft 5 through the intermediary of a chain drive I2. Thus, the

ofthearrowb(Fig.1). r H

"The following arrangementiserves foricoupling' A claw I6, rotatable about an axle I5, is mounted ion the sprocket wheel II (Fig. 6) Asp ring, not

shown in the drawings, tends to .move this claw 7 into. the path ofa nose I4 mounted on. the hub of the runningjwheelgbut is preventedfrom; en-

gaging same by a stoplnotshown) locking thei '7 claw I6. If this stop' is shifted by theoperator fromhis seat; by means of;.a rope, the'spring brings the claw I6 into the path of-theinose I4, a

vice, which is not herein described indetail'," is

r a 0, Fig. 6 isan enlarged longitudinal section on:

11: how details on' a considerab1 i 7 conveyorgrid 8, 8', 9- is moved inthe direction j garages again locks the same. In this manner the conveyor gridis also again automatically stopped. 1

For the reasons mentioned at the outset the conveyor gridis inclined both in the longitudinal direction (Fig; 1) from the front towards the rearand also in the transverse direction from the side of the sheaf gatherer adjacent the mowing and binding machine (right in Fig. 3) to the side remote therefrom (left in Fig. 3). More over, as shown in Fig. 3, the transverse bars 9 of the conveyor grid arehigher on the end adjacent the mowing and binding machine than those at the other end. v

The above mentioned boxserves for catching the grains and any weed seeds in its rear portion 2-I' brushed by the conveyor grid and for collecting these grains and seeds in its front portion 22 which is not brushed by the conveyor grid. The transverse bars 9 of the upper part of the conveyor grid effecting the depositing of the sheaves first move over a sheet metal plate I8 arranged in thebox 4 and then over a grate extending therefrom and composed of parallel longitudinally arranged bars I9- The transverse bars convey any separated grains and weed seeds from the sheet metal plate I8,and these. grains and seeds, as. the. transverse. bars. brush over the grate, then drop between the grate bars on to the box bottom I! (Fig. 1.) together with the grains separated on. this: grate. The transverse bars of the returning portion ofthe conveyor grid brush this box bottom I! and. push forward the grains and seeds which have fallen on to the box bottom, lift them over a ramp 26 extending concentric to the shaft '5 and over which it brushes, and allow them to drop into thecollecting chamber 22 situated behind the ramp and over which the conveyor grid does not brush.

The collecting chamber 22 is closed at the top by a sheet metal plate 24 turnable about a hinge 2.3. The front end of this plate 24 rests on the above mentioned sheet metal plate I8, is lifted by each passing transverse bar 9 of the conveyor grid and then again drops by gravity. Thus, a. gentle shaking movement is imparted to this plate 24 which allows any grains and weed seeds: to slide downwards thereon.v As the starting up of the conveyor grid only takes place periodically,'the noise occasioned by each lifting and dropping of the sheet metal plate 24 is not disturbing. For emptying the collecting chamber 22 the plate 24 is swung upwards.

To ensure that the transverse bars brush against the horizontally arranged box bottom H in spite of the inclination of the transverse bars 9 in the transverse direction and in spite of the different heights at the two ends, the shaft 5 and the transverse axle 5 are also inclined in transverse direction.

In order to prevent torn-off pieces of stalks and leaves from entering the collecting chamber 22 the box bottom has, at the place where the lower part of the conveyor grid commences its return movement from the rear towards the front, an aperture 36 extending across the entire Width of the box and through which pieces of stalk and leaves conveyed by the transverse bars of the conveyor grid can drop on to the field. The tearing off of such pieces of stalk and leaves is assisted by the stubble on the field which, when the box aperture 36 brushes thereover, so to say brush out the pieces of stalk and leaves. Within the box and above the returning portion of the conveyor grid 8, 8', 9 the aperture 36 is The rear end of the box 4, when the conveyor grid is'at rest, is closed by a controlled wall 26 rotatable about the axle 2 5 into the position 26 (Fig. 4), this wall, when the conveyor grid is set in motion, being automatically swung dcwninto the position 26' and again raised, also automatically, after the conveyor grid has been at rest' for a certain short time.- I

In order to attain this effect, a rod 28 isconnected with the wall 26 by means of a link 21 (Figs. 6 and 8), said rod extending through an aperture 29 in a support 36 fixed on the outer'side of the box and bent slightly downwardly at its front end 28a. The wall 26 is locked in its raised or inoperative position by a nose 3| provided on.

the under side of the rod 28 and engaging in front of the lower edge of the aperture 29 of the support 30. The rod. in this position covers the. gap extending from r to y in a cylindrical guide race 32 fixed on the sprocket-wheel I I. If, when starting up the conveyor grid, the sprocket wheel I I commences to rotate in the direction e (Fig. 6), the end :1: of the guide surface gradually raises the rod until, when the end a: has reached the position (:13) the rod assumes the position (28) shown in dotted lines and the nose 3I is raised above the lower edge of the aperture 29 in the bracket 30. The wall 26 then drops by gravity into the position 26' (Fig. 8) and pulls the rod 28 in the direction of the. arrow 1 (Fig. 6) into the position 28'. The oscillation of the wall is limited by a pin 33, mounted on the rod' 28, coming. in front of the bracket 36 and thus preventing the further displacement of the. rod. During the continued rotation of, the sprocket wheel I I the rod end 280. bears against the guide race 32 and this race again influences the rod 28 only when its end g has left the rod end. Then, the rod end 280. drops into the gap a:y in. the guide race, bringing the rod into the position 28" (Fig. 9). When the guide race has returned into its initial position shown in full lines inFig. 6, the sprocket wheel II, which according to the former constructions only carried out a single complete rotation, again stops together with the guide race 32. Shortly afterwards the rod and the wall 26 are automatically returned into their initial positions in the following manner:-- I

An angle-shaped abutment 34 is provided on the rod 28, and a roller-shaped catch 35 mounted on the running wheel I so that it rotates therewith. When the rod is in the position 28' cor responding to the lowermost position of the wall 26 and shown in Fig. 8, the catch 35 travels past the under side of the abutment 34 so'that. the rod remains uninfiuenced. This takes place before the sprocket wheel has completed a full revo- 60 lution and consequently before the rod 28 has reached the position 28" shown in Fig. 9. The sprocket wheel thus comes to a standstill together with the conveyor grid, and the rod assumes the position 28" so that the rod abutment 34 is in the path of the still circulating catch 35, which, in ascending, comes into contact with the abutment 34 and by this abutment, during its upward movement towards the right (Fig. 10) lifts and shifts the rod carrying the abutment so that the wall 26 commences to lower. When, during the further rotation of the running wheel I, the catch 35 again commences to descend (Fig. 11) the rod is also lowered until its under side bears against the lower edge of the aperture 29 in the above I mentioned bracket 30., At this instant thecatch '35 disengag'es from the rod, the nose 3 l of which is then situatedslightly onrthe right side of the 'by gravity into its initial position towards. the left until the nose "3| again bears against the front side of thelbracket 30 as shown in Fig. 6 By thelateral; shiftin'g of the rod its abutment 34 I isagain moved out of the pathof the catch 35 (Fi 6) sothat this'catch can pass the abutment without influencing the rod. Thus, it is appar-j cut that thewall 26 will be raised aga n from its lowered position only when a certain period of: time has elapsed after the stopping of the conveyoli g rid', this period'corresponding substan tially to the time required for the catch 35 to rotate through an'angleof about 270.

ll In alarge sheaf gather-er for mowing'and binding'machines with known'endless conveyor grid for depositing the sheaves and k'nown means adapted to be actuated by the operator for cou- .pling'the driving wheel of the conveyor grid with a runnin'glwheel of theisheaf gatherer toci'rculate said conveyor grid, and a known releasing device fitted on thelsheaf gathere-r a'nd adap'ted to automatically disengage the coupling between the driving wheel of-the conveyor: gridrandthe running wheel' of thesheaf gatherer tofstop said conveyor grid after the depositing of the sheaves, areceptacle for catching the grain,and a. second receptacle separate from saidfirst receptacle for l collecting the grain beyond the end of said conveyor grid.- I l r v 2. In'agsheafgatherer' as specifiedin claim 1,

transverse bars on said conveyor grid adapted to brush along the bottom of said catching'receptacle'during' the return movement of said con- 3. In a sheaf gatherer; as specified V acover wall constructed as a grate with longitu-- veyor grid and to push the grains in front into said ,collecting'receptacle,

of them in claim 1,

dinally directed bars forming the cover wall of saidcatching receptacle. i

4'."In asheaf gatherer as specified in claim '1, a: drive for said conveyor grid, a'closing wall hingedly mounted atthe rear'end of said gather r er, and means controlled by said drivefor lowering said wall when said grid is set in motion and bars-on saidiconveyor grid adapted to brush adapted to drop into inner to the outer side of the gatheren; v

' the bottom of said catching receptacle having an raising said wall shortly attersaidJconveyor'grid has come toastandstill 5. In a. sheaf gathereras speciflediri claim I1, a curved wall separatingxsaid catching receptacle from said; collecting receptacle, and transverse along e ot om o ws iq' e in esen e u ing the return movement of said conveyor grid to push the grains from-said catching receptacle In sheaf gatherer as specified in cllairn -1,

a driving wheel adapted to;;drive said conveyor grid, a clos ng wall hingedly mounted on the rear end of theegathererfarod connected tojsaid wall, Y

means-for'locking said rod tomaintain said wall 1 Y in raised position, alcylindricaiguide'race fi d f on; said driving wheel and havinga gap, said race adapted toliftsaidQrod to disen esaid ilock ing means to allow said wall todrop by gravity and axially shift; -said rod,:an abutment ,on: said 20 :I'Odpfl catch onsaid. wheel'adapted' during. the

8; In-a sheaf gatherer as specified in i transverse 'bars on' said conveyor grid, saidbars being higher on the inner side than on the outer side;

9. In a sheaf gatherer as specified in Claimfl, transverse bars on said conveyor gridinclin'ed,

7 from the front towards. the rear in'the longitu-L dinal direction of the gather-er.

10. In a. sheaf gatherer as specifiedinclaini 1 aperture 'at its rear end below the lower reversing point of said conveyor grid to allow pieces of l stalk and leavesto'drop out of said'receptacle on to the'field; and an inclined wallat the -front 4 end of said'receptacle beyond; the 'front reversing point of the-conveyor grid to facilitate the passage of the grains out of said catching receptacle into saidcollectingreceptacle. V

t MARTIN'RAUSCH:

over said wall and into said collecting receptacle. 1'0. 

